Quantification of DERs Penetration Level in Microgrids: A Quest for Enhancing Short-Term Power Grid Resilience

Abdollah Younesi, Zongjie Wang, Sergio A. Dorado-Rojas, and Paras Mandal

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@inproceedings{younesi2023,
  title = {Quantification of {{DERs Penetration Level}} in {{Microgrids}}: {{A Quest}} for {{Enhancing Short-Term Power Grid Resilience}}},
  shorttitle = {Quantification of {{DERs Penetration Level}} in {{Microgrids}}},
  booktitle = {2023 {{IEEE Power}} \& {{Energy Society General Meeting}} ({{PESGM}})},
  author = {Younesi, Abdollah and Wang, Zongjie and {Dorado-Rojas}, Sergio A. and Mandal, Paras},
  year = 2023,
  month = jul,
  issn = {1944-9933},
  doi = {10.1109/PESGM52003.2023.10252413},
}

Abstract

Microgrids ease the integration of distributed energy resources (DERs) into bulk power systems. Given their capacity to operate in islanded and grid-connected modes, microgrids can isolate themselves from the grid when an extreme event occurs, maintaining customer service. The capability of operating in standalone mode enhances short-term grid resilience, defined as the ability of the system to withstand extreme events by applying appropriate corrective actions. Our work quantifies how the DER penetration level in a microgrid affects grid resilience. We provide insight into managing the penetration level of DERs, such as dispatchable distributed generators (DGs), energy storage devices, electric vehicle parking lots (EVPs), and small-scale wind turbines (WTs), to improve grid resilience while achieving economical goals. For this aim, a bifold resilienteconomical objective is integrated into a two-stage stochastic planning method. Using this approach, resilience is evaluated jointly with economical metrics for different DER penetration levels. Simulation studies on an IEEE 33-bus test feeder system demonstrate the proposed strategy’s effectiveness and efficiency in maximizing short-term grid resilience.

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